Centrifugal cream-separator.



'15 The apparatus is hereinafter described as and lies adjacent to butwithin the upper end 'No. 761,891. Patented. June 7, 1904.

UNITED STATES PATENT QFFICE.

PERLEY L. KIMBALL, OF BELLOVVS FALLS, VERMONT, ASSIGNOR TO VERMONT FARMMACHINE COMPANY, OF BELLOIVS FALLS, VERMONT, A CORPORATION. j

CENTRIFIUGAL CREAM-SEPARATOR.

SPECIFICATION forming partof Letters Patent No. 761,891 dated June 7,1904. Application filed February 11. 1904. Serial No. 193,071. (NemodeL)T whom it "my 0 tion with respect to the bowl, so as to avoid Be itknown that I, PERLEY L. KIMBALL, a as much aspossible any tendency ofthrowcitizen of the United. States of America, resid- 'ing the deviceout of balance. This object is ing at Bellows Falls, in the county ofWindham attained to a considerable extent-by the method 5 and State ofVermont, have invented certain of supporting the inner liner, as aboveset new and useful Improvements in Centrifugal forth. 1Cream-Separators, of which the following is In the dome shaped coverthere is formed a a specification. I compartment Z, into which the fullmilk is de- The object of the invention is the production livered. Acone on, closed at its upper end,

I of an apparatus for separating mixed fluids of forms a bottom to thechamber Z and is secured different densities notablyfor separating theto the cover by suitable means, as the spacingcream fromthe so-calledblue milk, as the blocks a, forming. an annular passage 79 betwo arecontained together in what is-known tween the cover and this cone. Thelower as .full milk. "edge of the cone is outwardly curved, as at q,

. applied to creamseparation. of the inner liner.

In the drawings, Figure '1 is a central verl- The full milk in thechamber Z flows down 'tical section of a separator embodying my inoverthe wall of the cone in a thinfilm or 5 vention. Fig. 2 is a detail viewof a modifilamina, and as it strikes the outwardly-turned 20 cation. vlower edge it is thrown directly out onto the The letter a denotes theseparator-body. skimming-surface of the inner liner, thus sub- Theletter 7) denotes'the separator-cover, .jecting the milk at the earliestpossible mowhich may besecured to the body byathreaded ment to theskimming action of the separator 7 flange and a suitable packing-ringbetween the and taking advantage of the greatest possible 5 cover andbody. 7 The cover is preferably length of skimming-surface of the liner.dome-shaped, provided with a central inlet 0 Preferably there are threespacing-blocks for the introduction of the full milk and the adused tosupport the cone in the cover. These justable non-central outlet d forthe outflow may take the formof a solid block, as shown of cream. Theblue milk escapes at the botin Fig. 1, or the shouldered pins n shown in3 tom of the bowl throughthe outlet 6. Fig. 2 may be used. This methodof conf denotes the outer linensupport ed at foot, ducting the full milkto the separating-chamas by the pintle f, entering a recess in the berhas many ad vantages over separators herebase,and at its upper end bythe ring 9, which tofore made which have this general method contactswith the inner surface of the bowl. of operation +for-instance, the oneshown in 35 i2, denotes the inner liner,located within'the my Patent No.7 20,154: of February 10, 1903. outer liner and is supported thereby atits The useof the plate permits me to have'the lower end. At or near itsupper .end it is procover construction lighter than by any former videdwith a ring ,7 or equivalent devices construction, thus loweringthecenter of grav- 8 5 which contacts with the inner surface of the ity ofthe complete separator and tending to 4 separator-bowl. It is thus seenthat both the insure its more perfect balance when in oper- 'inner andouter liners are supported by and ation. positively positioned withrespectto the sepa- The whole milk as it is fed into the chamrator bodyor bowl. ber'Z falls upon the flat surface of the cone m 9 As is wellknown,devices of this sort when and there spreads out equally into avery thin 45 in use are rotated at several thousand turns a film andflows down overthe expanding walls minute,and it is essential that theinner parts of the cone, which not only causes the milk be maintained inproper alinement and posito take on the whirling motioniof the bowl,

but also causes the film to become thinner as the diameter of the coneenlarges, so that when it is delivered to the inner liner it is in thebest form to receive the fullest action of the separating elements ofthe bowl, whereby the separation is more complete than by any of the oldmethods of feeding full milk. Furthermore, by this improved constructionthere is a clear open space between the cover and the cone which permitsof much more thorough and easy cleaning, which is essential in machinesof this class. It is to be noted that this cone is strictly a feedingdevice for conducting the full milk to the separating-chamber in themost advantageous Way.

The non-central outlet (Z for the cream comprises a tube d, which passesthrough the plate closing the upper end of the cone and through theupper wall of the cover. It has a liquid-tight connection both at thecone and at the cover and is supplied at its upper end with a rotatableplug eccentrically pierced. The cream collecting under the cone passesout through this tube.

I claim as my invention 1. In a centrifugal separator the bowl, and theliners located in said bowl one within the other, said liners beingsupported independently of one another at their upper ends by the innerwall of the separator-bowl, substantially as described.

2. In a centrifugal separator the combination with the bowl and theliners located therein one within the other, of spacing devices by meansof which each liner is supported independently of the other at its upperend by the separator-bowl.

3. In a centrifugal separator the combination with the bowl and theliners located therein one within the other, of a ring secured to theupper end of each liner, said rings having contact with the inner wallof the separatorbowl.

I. In a centrifugal separator the bowl, the cover therefor, and thefeed-cone supported by the cover, the lower edge of said eone beingoutwardly flared, substai'itially as described.

5. In a centrifugal separator the bowl, the cover therefor, thefeed-cone closed at its top, and spacing devices between said cover andsaid feed-cone forming an annular passage therebetween.

6. In a cream-separator the bowl, the cover therefor, the chamber insaid cover, and the feed-cone supported in the cover and formingsubstantially annular conduits from said chamber to theseparating-compartment of the bowl.

7. In a centrifugal separator the combination with the bowl, and thecover there for, having a chamber, of a feed-cone supported by saidcover and forming an annular conduit from said chamber to theseparating-m nipm'tn1ent in the bowl, said cone being closed at itsupper end, and a tube having a liquid-tight connection through theclosed end of said cone and passing throu 'h the top of said cover,substantially as descrlbed.

8. In a cream-separator the COU'llllHflhlOll with the bowl, and theliners located therein one within the other, and supported thereby bothat bottom and top, of a cover adapted to be secured to said bowlindependently of said liners, and a feed-cone having a plain surface,and spacing-blocks supporting said feed-cone in said cover and formingan annular passage between said parts, substantially as described.

In testimony whereof I allix my signature in presence of two witnesses.

IERLEY L. KI MBALL.

\Vitnesses:

GEO. H. MUZZEY, R. (J. BIDWELL.

